Evidence map›Paper›PMID 34609090›Full record

ArticleJournal of Korean medical science2021

Effect of Dementia on Postoperative Mortality in Elderly Patients with Hip Fracture.

Yong-Chan Ha, Yonghan Cha, Jun-Il Yoo, Jiyoon Lee, Young-Kyun Lee, Kyung-Hoi Koo

Open access · goldAbstract read
In one paragraph

Article in Journal of Korean medical science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
5.6field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Chronic comorbidities and risk of 30-day mortality in hip fracture patients- a Danish National patient registry study.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2025
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  5. Review
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  10. Article
  11. Observational
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  13. What do hip fracture patients die from?European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2023
    Review
  14. Article
  15. Article
  16. Patient-specific risk factors for adverse outcomes following geriatric proximal femur fractures.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022
    Review
  17. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 1 country.

Yong-Chan HaDepartment of Orthopaedic Surgery, Chung-Ang University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-6249-0581
Yonghan ChaDepartment of Orthopaedic Surgery, Daejeon Eulji Medical Center, Eulji University School of Medicine, Daejeon, Korea. cyh@eulji.ac.kr.ORCID https://orcid.org/0000-0002-7616-6694
Jun-Il YooDepartment of Orthopaedic Surgery, Gyeongsang National University Hospital, Jinju, Korea.ORCID https://orcid.org/0000-0002-3575-4123
Jiyoon LeeDepartment of Orthopaedic Surgery, Daejeon Eulji Medical Center, Eulji University School of Medicine, Daejeon, Korea.ORCID https://orcid.org/0000-0001-7984-7084
Young-Kyun LeeDepartment of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.ORCID https://orcid.org/0000-0001-6564-4294
Kyung-Hoi KooDepartment of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.ORCID https://orcid.org/0000-0001-5251-2911
Eulji University · KRSeoul National University Bundang Hospital · KRChung-Ang University · KRGyeongsang National University Hospital · KR

Funding

Korea Health Industry Development Institute HC20C0157Korea Health Industry Development Institute HI19C0481
6 · The paper itself

Abstract

backgroundThe aim of this study was to assess the prevalence of dementia as an underlying disease in elderly patients with hip fracture, to investigate the effect of dementia on postoperative mortality after surgery of hip fracture, and to analyze the differences in postoperative mortalities according to the severity of dementia through subgroup analysis.

methodsThis study selected 2,346 elderly patients who were diagnosed with unilateral intertrochanteric or femoral neck fractures who underwent surgery between January 2004 and December 2018. The patients were classified into the non-dementia group (2,196 patients) and dementia group (150 patients; no-medication [66 patients] and medication [84 patients] subgroups). The cumulative crude mortality rate was calculated, and 30-day, 60-day, 3-month, 6-month, and 1-year mortality rates were compared between the groups. A univariate regression test was performed using age, sex, diagnosis, surgery type, and Charlson's comorbidity index (CCI), as these variables had

resultsThe 30-day, 60-day, 3-month, 6-month, and 1-year postoperative cumulative mortality rates were 1.8%, 3.8%, 5.6%, 8.9%, and 13.6%, respectively, in the non-dementia group, and 2%, 7.3%, 14%, 19.3%, and 24%, respectively, in the dementia group (

conclusionIn elderly hip fracture patients, the comparison between patients with and without dementia revealed that dementia was an independent risk factor for mortality at a minimum of 1 year of follow-up, and the severity of dementia in hip fracture patients was a risk factor for mortality within 6 months and 1 year, postoperatively.

Indexed as

AgedAged, 80 and overComorbidityDementiaFemaleFemoral Neck FracturesHip FracturesHumansMaleMultivariate AnalysisNootropic AgentsOdds RatioPostoperative PeriodRetrospective StudiesRisk FactorsSurvival RateNootropic AgentsDementiaHip FractureMini-Mental State ExaminationMortalityRisk Factor

Identifiers

PMID34609090
PMCPMC8490792
OpenAlexW3195254769

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.